Your care path

Torn ACL

A torn ACL is a tear of the anterior cruciate ligament, one of the main ligaments that stabilizes the knee. It usually happens during sports that involve sudden stops, pivots, or awkward landings, often without any contact. Many people report hearing or feeling a "pop" at the moment of injury.

  1. 1

    Recognize it

    Common signs of torn acl:

    • A popping sound or sensation at the time of injury
    • Rapid swelling within hours
    • Pain and difficulty bearing weight
    • A feeling that the knee is unstable or "gives way"
    • Loss of full range of motion
  2. 2

    Know when to act

    If your knee swelled quickly after an injury or feels unstable, an evaluation is worthwhile, an exam and often an MRI can confirm the diagnosis. Initial care is typically rest, ice, and physical therapy, and not every ACL tear requires surgery. A sports medicine surgeon can help you weigh reconstruction against rehab alone based on your age, activity, and stability.

    Sudden numbness, loss of bladder or bowel control, or inability to bear weight can be an emergency. Call 911.

  3. 3

    See the right specialist

    Torn ACL is treated by a sports medicine surgeon. Describe your symptoms and we'll match you to the best-fit surgeons near you.

  4. 4

    Understand your options

    Treatments a surgeon may discuss:

    Many people improve without surgery. Your surgeon will start there when it's an option.

  5. 4

    Prepare & book

    Bring the right questions and records so your visit counts. Our free tool builds you a personalized visit-prep sheet, then helps you book.

This is general guidance, not medical advice or a diagnosis. Always consult a licensed clinician. In an emergency, call 911.